Current-distributer for sparking devices.



No. 866,212 PATENTED SEPT. 17, 1907! E v .m. s. NAPI R." CURRENT DISTRIBUTER FOR SPARKING DEvIcEs.

APPLIOATIOH FILED SEPT. 28, 1904.

4*8HEBTS-SHEET 1.

: e lw w No. 866,212. PATENTED SEPTIN, 1907.

M. s. NAPIER.

CURRENT DISTRIBUTBR FOR SPARKING DEVICES.

APPLICATION FILED SEPT. 26. 1904.

4 SHEETS-SHEET 2.

01/1 5770? MIT/#3559 No. 866,212. I PATENTED- SEPTLN, 1907. M. s. NAPIER.

CURRENT DISTRIBUTBR FOR SPARKING DEVICES. APPLICATION inn) azr'r.2s,1ao4.

4 BKEE TSSKEET 3.

fil-incu 1 I Juvnuar W A1,5,Wa vicr Acton: e z/J No. 866,212. PATENTED SEPT, 17, 1907,

M. S NAPIER. CURRENT DISTRIBUTER FOR SPARKING DEVICES.

-APPLIUATIGN FILED SEPT,EB,1SO4,

CURRENT-DISTRIBUTER S.

Application tiled September 26,

, Specification of letteifi e Sept. 17, 1.907.

To all whom it may concern:

lie it known that l, MoNrnGUn S'r-tNLEy NAPlliIl, engineer, a subject of the King of Great; Britain and Ireland, residing at Acton Vale, London, W., England, have invented eel-Lair new and useful linprovennmts in and Relating to (.urrent-Distrihuters ior Sparking Devices, oi which the i'o'llmving is a specification.

The invention relates to electrical ignition nppz ior use with petrol motors and the like and has ior its object to provide etiicient means in: enabling more than one cylinder to be served from a single induction coil.

The invention eonsi s in the combination oi it high tension (llllllllliOl' with a low tension interrupter, the shai'ts on which the two elements are mounted he geared together.

The invention further consists of the structural details of such a device to be hereinafter described and includes means whereby the sparks in the cylinders can be accelerated or retarded.

llieierring to the ai-eompanying drawings which form part of the spoeitieation:--Figuros 1 and 2 show front elevation and plan respectively oi a form oii'our point ignition device according to the invention; Figs. 3 and 4 being sections on the lilies A and 1' ii oi Fig. l respeetimly; Fig. 5 shows a view of one of the high ten sion intermediate eo'ntact pieces; Fig. 5, being a correspomiing section on the line (J C of Fig. 5; l shows a cross sectional view of .1. form oi s epoint ignition device, Fig. 7 being a corresponding elevation shown partly a section on the line l) D of Fig. 6, while Fig. 8 shows a iorin of spring blade contort in) the low tension interrupter.

ln carrying the invention into ol'teet according to one form as applied, for example, to a four-point eleetrioal ignition apparatus titted to a motor vehicle (see Figs. 1%), two spindles, a, and b, are provided side by side and are geared together, for example by the spur Wheels, 0, to roll] at the same speed, suitable means such o chain wheel, d, or the like on one of the spin (lles, being provided in the manner usual when an i1. terrupter or the like is to be geared to the motor it serves.

The one spindle, u, carries a toothed disk or interrupter, 0, adapted in connection with a hlade contact, f, to make and break the low tension circuit, by way oi the insulated terminal 11/01 the primary of the coil, 0 four times per revolution oi said spindle, or with inotors working with the usual lour stroke cy'le, our times every two revolutions of the motor shalt; it is oi course assumed that the motors served by the complete d oriee all work on the same shalt. The blade contact, f, is nioiuit ad on a plate, /z, or the like which is its-ell car-- ried by a sleeve, 'i, eo-oxial with the spindle, a; blade plate and sleeve can be adjusted as one piece in reie tion to the interrupter, c, 1'01" timing purposes by means scribed. A suitable insulating (see Figs. 1 button, 5, disposed the button being 0 U1 to the insulated whieh is oarthed.

oi the rennin-ale, s,

' spa-rung the other in- J plugs being and under tl ndicated, on" truiiv o ri l t g 1.

in wl .en for illusheeu rot. ted through town in Fig. l, the t. side oi the hex, 4, in

Way of on t in mediate pieces are intervals on it earlier, 6, made of ltt'tifi niateri the carrier itself turn seemed to an adjustable sleeve, '7, co the listrihuter spindle, b, l W always in Contact lied to the sleeve, 7, to he adjusted tangentially in ring the spark.

ehonite or otie: being in ax' .l i i the similar parts of Figs. 1

'nt into in eetional plane .3, are geared to- 8, or the like, in eels, 5), one of which v g :1 low r l0 or the like, being; sion'n eonveinmnai means of operating the sleeve 5 11nd is mounted on n The distributer is so arranged in relation to the interrupter that the rotatable contact arm, s of the distributer is opposite one of the high tension contacts when the low tension circuit is completed by the interrupter, the arcs of contact of the high tension circuit being preferably made somewhat larger than those of the low tension circuit so that the makes and breaks may be upon the latter.

Where more than about four cylinders have to be served, the distributor above described is preferably modified so as to avoid a too close proximity of the high tension contacts In carrying this modification into effect according to one form as shown in Figs. 6 and 7 the intermediate contact pieces, 5, described above as mounted on the adjustable sleeve, 7, are in the modified form divided into two sets, 5, an'd 5*, arranged on the carrier, 6, in a staggered or zigzag manner, each set being thus respectively in one of two parallel planes at right angles to the axis of the distributer spindle, so that although in an end "iew as seen in Fig. 7, the center lines of these contact pieces are separated by arcs of only 60, nevertheless their actual distances apart may be readily made sufficiently great to safeguard against short'circuits. The radial contact arm, s, mounted on the spindle is made of suilicient length, as shown in Fig. (i, to reach the more distant set ofcontacts, 5*. The arrangement of the interrupter in this modified form'of the invention is the same as that already de-.

scribed above, with the exception that the interrupter, c, is replaced by a si milar one adapted to make and break the current six times per revolution instead of only four times.

Reference symbols not directly referred to in Figs. 6 and 7 bear the same significance as above.

instead of the ordinary blade contact, f, described above in connection with the low tension spindle, for high speeds or when otherwise desirable, i may adopt the form of contact shown in Fig. 8. The spring blade, f, is as before mounted on the plate, h, but carries a roller, ll, which cooperates and is in continual contact with the toothed disk, 1: or the like; the makes and breaks then occur at platinum contact points, 12, orthe like, carried respectively by the blade,f, and a screw, 13, mounted on the plate, h, fixed tothe adjustable sleeve, i.

The whole apparatus with the exception of the gear Wheels, and cooperating parts may be (:onveninetly put up in box form as already described and be ar ranged on the dashboard, i l, (see Fig. 2,) of the vehicle or elsewhere.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In 21;] electrical ignition device, the combination oi two rotatable shafts. neared together; an interrupting device operated by one of" said shafts and acting to make and break the low tension circuit of an induction coil; u distributing device operated by the other of said shafts and comprising a rotatable contact piece cozuzting with a plurality of fixed contact pieces to distribute the induced high tension current to the required sparking points; means for timing the sparks, said means including adjustable elements coin] respectively with said interrupter nnd distribut shafts, the element co-axial with said distributor shaft carrying intennediuie contact pin. cs equal in number to said fixed contact pieces and in slidublc contact therewith.

-2. In an electrical ignition device, the c:.mibinaf.ion or two rotatable shafts; a casing through a wall of which said shafts pass; means disposed without said casing, for gearing together said shafts and disposed within said casing an interrupting device operated by one of said shafts and acting to make and break the low tension circuit of an induction coil; a distributing device operated by the other of said shafts and comprising a rotatable contact piece (re-actingwith a plurality of fixed contact pieces to distribute the induced high tension eurrent to the required sparking points; means for timing the sparks, said means including adjustable sleeve elements co-uxiai respectively with said interrupter and distributor shafts and par ing' through said casing wall; segmental spur wheels disposed without said casing and gearing together said sleevcciements together with intermediate contact pieces disposed within said casing and carried by the sleeve element co-uxizii with said distributor shaft, said intermediate contact pieces being equal in number to said fixed contact pieces an'd in slidable contact therewith.

3. In an electrical ignition device, the combinationv of two rotatable shafts geared together; an interrupting, device operated by one of said shafts and acting to make and break the low tension circuit of an induction coiiy'a distributing device operated by the other of said shafts and comprising a rotatablecontzict piece co-aeting with a plurality of fixed contact pieces to distribute the induced high tension current to the required sparkiuig; points; means for timing the sparks, said means including adjustable elements co-axiai respectively with said interrupter and distributor shafts, the element co-axiai with said distributor shaft carrying a contact piece in siidable contact with a fixed contact piece.

4. in an electrical ignition device, the combination of two rotatable shafts geared'together; an interrupting'device operated by. one of said shafts and acting to make and break the iowjtension circuit of an induction coil; a

distributing'device operated by the other of said shafts and comprising a rotatable contact piece (to-acting with a plurality of fixed contact pieces to'dlstribute the induced high tension current to, the required sparking points; means for timing the sparks. said means including adjushiblc elements co-axiai respectively with said interrupfcr and distributor shafts, the element co-axiai with said distributor shaft carrying a contact piece in siidable coniuci' with a fixed contact. piece, and the element (to axial with said interrupter shaft carrying a contact point and a spring blzidc provided with a (to-acting contact point. said spring: blade carrying a roller co-ucting with said interrupting device.

3. in an electrical ignition device, the combination oi!- two roiuiuble shafts geared together; an interrupting devicc operated by one of said shafts and acting to make and break the low tension circuit of an induction coil; a distributing device operated by the other of said shafts and comprisinga rotatable contact piece ctracting with i]. plurality of fixed contact pieces arranged lira zig-zag inanncr to distribute the induced high tension cur-rent ,totthe 'rcquircd sparking points together with means for timing vice operated by one of said shafts and acting to make and break the low tension circuit of an induction coil; :1

distributing device operated by the otheroi said shafts and comprising a rotatable contact piece co-acting with a plurality of fixed contact pieces to distribute the induced high tension current to the required sparking points; means for timing: the sparks, said means including; zuijusinblc elements co-uxiai respectively \Vithsuid inter ruptcr and distributor shui'l's, the element 'co-axial with said distributor shaft carrying intermediate contact pieces equal in number to said fixed contact pieces and in slidzible contact therewith; a casipg containing all the 

